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Finding the Fourth Proportional to 30,548.54, 42,156.96 and 18,611.91

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Solution

The fourth proportional to 30,548.54, 42,156.96 and 18,611.91 is: 25,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,548.54 : 42,156.96 = 18,611.91 : x
  2. Step 2: Convert to fraction form
    30,548.54/42,156.96 = 18,611.91/x
  3. Step 3: Cross multiply
    30,548.54x = 42,156.96 × 18,611.91
  4. Step 4: Simplify right side
    30,548.54x = 784,621,475.60
  5. Step 5: Solve for x
    x = 784,621,475.60/30,548.54
  6. Step 6: Final answer
    x = 25,684.42

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